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She simply looked up at me, with a look of total disgust, and went straight back to sleep ;-)
I'd like to do the same but I don't want to disturb her. After nearly 6 months of trying to get her to go to sleep on my knee, she finally did so at 0130 yesterday, just as I was planning to go to bed. So I had to sit here until 0230 when she woke up. She's been on my knee for an hour or two now, so it might be a sleepless night for me! There are times when I wish she'd sleep in her own house. (She's not my cat!).